发明名称 Projection-type display apparatus and method for performing projection adjustment
摘要 A projection-type display apparatus that projects an image toward a projection surface and displays the image thereon, the apparatus includes: a projecting section that includes a focal length adjusting mechanism and projects an image; an adjustment image controlling section that uses the projecting section to project a guide display image suggesting how to adjust the position where the projection-type display apparatus is installed and uses the projecting section to project a calibration image having a predetermined shape when the guide display image is projected; a projection distance measuring section that measures a projection distance that is the distance to the projection surface based on a captured image obtained by capturing the calibration image; and a focus adjusting section that operates the focal length adjusting mechanism based on the projection distance to perform focus adjustment so that the displayed guide display image is brought into focus.
申请公布号 US8272748(B2) 申请公布日期 2012.09.25
申请号 US20090619091 申请日期 2009.11.16
申请人 FURUI SHIKI;SEIKO EPSON CORPORATION 发明人 FURUI SHIKI
分类号 G03B21/14;G03B3/00 主分类号 G03B21/14
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